/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package controller;

import dao.SanPhamDAO;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import pojo.Sanpham;

/**
 *
 * @author admin
 */
@WebServlet(name = "listproduct", urlPatterns = {"/listproduct.do"})
public class listproduct extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            int numpro_perpage = 6;
            if (request.getParameter("numpro_perpage") != null) {
                numpro_perpage = Integer.valueOf(request.getParameter("numpro_perpage"));
            }
            request.setAttribute("numpro_perpage", numpro_perpage);

            int page = 1;
            if (request.getParameter("page") != null) {
                page = Integer.valueOf(request.getParameter("page"));
            }
            request.setAttribute("page", page);

            int maDanhMuc = 1;
            if (request.getParameter("maDanhMuc") != null) {
                maDanhMuc = Integer.valueOf(request.getParameter("maDanhMuc"));
            }
            request.setAttribute("maDanhMuc", maDanhMuc);

            List<Sanpham> dsSP = SanPhamDAO.LaySPTheoDanhMuc(maDanhMuc, page, numpro_perpage);
            request.setAttribute("dsSP", dsSP);

            int numberPages = SanPhamDAO.pageCount;
            request.setAttribute("numberPages", numberPages);

            request.getRequestDispatcher("listproduct.jsp").forward(request, response);
        } catch (Exception ex) {
            response.sendRedirect("errorpage.do");
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
